S6A0032 Datasheet, PDF (22/39 Pages) Samsung semiconductor – 16 COM / 80 SEG DRIVER & CONTROLLER FOR STN LCD

S6A0032 PRELIMINARY SPEC. VER. 0.5
16 COM / 80 SEG DRIVER & CONTROLLER FOR STN LCD
INITIALIZING
HARDWARE RESET
When the power is turned on, S6A0032 is initialized automatically by the power on reset circuit (refer to figure 8).
In case of RESETB pin becomes "Low" and durable the state for more than 1.2µs (VDD = 3V), S6A0032 can be
initialized too. During the initialization, the following instructions are executed, and BF (Busy Flag) is kept "High"
(busy state) to the end of initialization.
Display Clear
All the DDRAM data is set to "20H"
Return Home
Address counter = "00H"
Entry Mode Set Instruction
I/D = 1: Address counter is set to increment mode.
SH = 0: Entire display shift is disabled.
Display ON / OFF Control Instruction
C = 0: cursor OFF
B = 0: blink OFF
D = 0: display OFF
Function Set Instruction
DL = 1: 8-bit interface mode
CGRAM / DDRAM Address
RAM address counter is set to "00H".
VDD
t_RDD
0.9VDD
0.1VDD
t_OFF
0.1VDD
0.1VDD
VDD
t_RDD
Power OFF Time
t_OFF
≤ ^{1 ms}
≥ ^{1 ms}
Note: If the upper power conditions are not satisfied in power ON / OFF sequence, the
internal Power On Reset (POR) circuit will not operates normally.
Figure 8. Power ON / OFF Timing
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